Suppose a hospital manager measures the market for registered nurses (a factor market) and the price (salary) that employers offer is $40,000 per...

Suppose a hospital manager measures the market for registered nurses (a factor market) and the price (salary) that employers offer is $40,000 per year. The manager observes that there is a shortfall of 1000 nurses in the metro area. What does this say about the equilibrium salary (price) for nurses? What other evidence could a manager look for to infer whether a market is in equilibrium? What are possible causes of the shortage?